InChI=1S/C21H34O2/c1-13-11-14-12-15(22)5-8-19(14,2)16-6-9-20(3)17(18(13)16)7-10-21(20,4)23/h13-14,16-18,23H,5-12H2,1-4H3/t13-,14-,16?,17?,18?,19?,20?,21+/m0/s1